Respuesta :

Answer:

f(3) = 0

Step-by-step explanation:

f(1) = -7

f(n) = f(n-1) + 3.5

f(2) = f(1) + 3.5

= -7 + 3.5

= -3.5

f(3) = f(2) + 3.5

= -3.5 + 3.5

= 0